Tobacco smoking pipe



Jan. 10, 1939.

TOBACCO SMOKING P IPE Filed May 14, 1936 lnvenlor J. CIMCMACKIN 2,143,129

Patented Jan. 10, 1939 PAT NT OFFICE ronaooo- SMOKING PIPE John G. McMackinyRidgeway, Pa.

Application May 14, 1936, SeriaiNo. 79,779

Renewed January 19, 1 938 1 Claim. (01. 131-21 1) This invention relates to a tobacco smoking pipe of the type comprising a bowl having a separable bit or mouthpiece cooperable with the stem portion thereof, and has reference in particular to means incorporated therein for trapping moisture and tobacco juices in such a manner as to permit the accumulated deposit to be blown out and to thereby assure the smoker a more satisfactory and less contaminated smoke.

The prior art to which the invention relates is literally crowded with many different makes and varieties of smoking pipes calculated to accomplish somewhat the same results as herein involved. For example, it is admittedly old in this special line of endeavor to utilize single and sectional tubular inserts and sleeves in the socalled smoke passage.

The present improvement appertains to this specific field of invention and has to do with a fixed tube constitutingthe liquid depository, the same having a discharge plug at one end and being cooperable with a telescopically connected removable and cleanable smoke delivery tube, said tubes being possessed of structural distinction sufiicient to enable them to coordinate in accomplishing the newer result of efficiency sought after by this inventor.

structurally, one feature of the refined adaptation of tubes relates to a fixedly mounted juice or moisture collecting tube disposed in the bottom of the bowl and in alignment with the stem portion of the bowl and projecting beyond the bowl at a predetermined point to accommodate an easily accessible and removable closing cap or plug, said tube being provided with restricted smoke intake ports registerable with corresponding restricted apertures in the bottom of the tobacco bowl in such a manner as to properly trap the juice and allow passage of smoke and yet guard against drawing of tobacco particles into the tube with the down draft.

Other features and advantages will become more readily apparent from the following description and drawing.

In the accompanying drawing, wherein like numerals are employed to designate corresponding details throughout the views:

Figure 1 is a longitudinal sectional view of a tobacco smoking pipe embodying the accessories or improvements constituting the novelty hereinafter specifically claimed;

Figure 2 is a perspective drawing of the moisture collecting and draft regulating tube and its closing cap or plug;

Figure 3 is a perspective view of the companion tube carriedby the bit and projectible into the counter-bore of the bowl stem.

Referring now to the drawing, and initially to Figure 1, the tobacco bowl, which is conventional in appearance, is denoted by the numeral 4 and includes the customary substantially right angu Qlarly disposed stem 5 to accommodate the jointing shank on the detachable mouthpiece or bit 6. i The bottom of the bowl is provided with a horizontal. bore and the 'stem 5 has a slightly m .enlargecl counter-bore 1 into which the aforesaid shank isprojectible. portion of said bore extends through what might The left hand reduced end counter-bore 1 as shown in Figure l. The left hand end portion thereof projects through the corresponding end of the bore to accommodate the removable plug or closing cap 9. It will be observed that this cap is provided with a knurled finger grip l0 and is also .formed with an internal socket'll. The socket cooperates with the in- 25 terior of the tubular insert 8 to lengthen the pocket or depository in which the tobacco juices and moisture accumulate. That is to say, a solid plug would not afford this extra space. It is to be noted that the internal bottom l2 of the bowl 30 is provided with a series of substantially vertical smoke passages or apertures l3 comparatively restricted in proportion, and these register with correspondingly proportioned inlet orifices or ports M in the intermediate portion of the moisture collecting tube 8. The features l3 and M are in fixed communication or registry with each other as is obvious. Incidentally, the feature l2 forms in effect an insulating partition and spaces the fire in the bowl from the metal sleeve 8 to 40 prevent undue overheating of the metal, thereby insuring a cooler smoke. At the same time, the arrangement permits a free passage of smoke from the bowl into the tube 8, yet hinders the accumulation of tobacco particles in said tube because of this screening effect. The moisture and tobacco juice accumulate in the pocket" formed by the combination of features 8 and I I. Attention is now drawn to the companion or complemental tubular insert or unit I5. This is 50 a tube sufficiently long to project into the bore of the bit 6 and to also project into the counterbore '1. As a matter of fact, it has a shoulder or stop flange located in the bore 1, said flange being denoted by the numeral [6. The portion l1 pro- 55 jecting beyond this flange constitutes what might be identified as a shank telescoping into the ad- J'acent end of the fixed tubular insert or unit 8. Then there is a further reduced extension l8 which may be described as a nipple which functions somewhat as a pilot to facilitate jointing of the parts 15 and 8 when the bit 6 is removed and then reassembled. It will be further observed that the bore in this part I5 is comparatively restricted as regards the cross-sectional diameter of the bore in the part 8. Then, too, the nipple I8 projects into the part 8 so that it is necessary for the fluid in tube 8 to rise to the center of the bore in order to enter the bore or passage in the part I 5. Consequently, the strong tobacco juices are not easily drawn in with the suction propelled smoke stream.

It is to be observed, as before stated, that the right hand end of the fixed tubular member 8 is flush with the shouldered portion of the counter-bore I. At the same time, it projects at the left sufiiciently far beyond the bottom of the bowl to render the plug readily accessible for removal or replacement. The flange l6 facilitates telescoping connection of the parts 8 and I5, as does the so-called shank 'l! and its pilot extension I8. It is thought, therefore, that these parts are properly selected for mechanical coordination and are aptly fitted for the special purposes intended.

It is evident that when sufiicient moisture has accumulated in the pocket as to interfere with clean sweet smoke, all that is necessary is to remove the closing plug 9 and "to blow into the mouthpiece end of the pipe whereby to blow out the objectionable tobacco juices. While the tube 8 is not removable, it is obvious that when the parts 5 and '6 are separated, a stem cleaner can be utilized for removing solid matter. On the other hand, the tubular member 15 is removable for cleaning purposes.

It is thought that the description taken in connection with the drawing will enable a clear understanding of the invention to be had. Therefore, a more lengthy description is thought 11nnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes coming within the field of invention claimed may be resorted to if desired.

I claim:

A pipe of the class described comprising a bowl part and a stem, the lower portion of the bowl part having a horizontal bore therein spaced below the bottom of the bowl and the stem having a bore therein of larger diameter than the first-mentioned bore, the junction of the two bores forming a shoulder and the outer end of the first-mentioned bore passing through the front portion of the bowl part, said bowl part having restricted vertical smoke passages therein leading from the first-mentioned bore to the bottom of the bowl, a tube fitting in the firstmentioned bore and having holes therein registering with the smoke passages and the inner end of the tube terminating at the shoulder and its outer end projecting from, the outer end of the bore, a plug closing said outer end of the tube, a bit having a reduced part fitting in the outer end of the large bore, a tubular member having a part fitting in the bore of the bit and another portion passing through the bore of the stem, said tubular member being of smaller diameter than the bore of the stem to form a chamber between itself and the walls of said bore of the stem and the front end of the tubular member fitting snugly in the inner end of the tube for closing said inner end and. said front end of the tubular member having a reduced extension located in the tube and spaced therefrom, and a flange on the tubular member for limiting projection of the front end of the tubular member into the tube, the front end of the tubular member and the plug closing the ends of the tube to permit the tube to act as a moisture retaining chamber with that part of the bore of the tubular member passing through the front reduced end thereof being spaced above the bottom of the moisture retaining chamber.

JOHN C. MoMACKIN. 

